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प्रश्न
Give reasons for the following:
The chemistry of actinoids elements is not so smooth as that of the lanthanoids.
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उत्तर
Lanthanoids primarily show three oxidation states (+2, +3, +4). Among these oxidation states, +3 state is the most common. Lanthanoids display a limited number of oxidation states because the energy difference between 4f, 5d, and 6s orbitals is quite large. On the other hand, the energy difference between 5f, 6d, and 7s orbitals is very less.
Hence, actinoids display a large number of oxidation states. For example, uranium and plutonium display +3, +4, +5, and +6 oxidation states while neptunium displays +3, +4, +5, and +7. The most common oxidation state in the case of actinoids is also +3.
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संबंधित प्रश्न
Distinguish between lanthanoid and actinoids.
How would you account for the following:
Actinoid contraction is greater than lanthanoid contraction.
Why do actinoids show a wide range of oxidation states?
Write on similarity between the chemistry of lanthanoids and actinoids.
What is the position of actinoids in periodic table ?
Which of the following actinoids exhibits only + 3 oxidation state?
Which of the following actinoids shows +6 oxidation state?
The electronic configuration of Ux+ ion is [Rn]. What is the value of x?
[At. No. of U = 92]
The inner transition metals of 5f series are known as ____________.
Why do actinoids show variable oxidation states?
